This article explains about built in Slideshow builder, if you want to use third-party Slideshow widget please read this article- https://docs.vintcer.com/custom-html-js-code​
From Slideshow setting panel, choose Slideshow settings
2. Click on the last Dropdown button to choose from from Manual or Autoplay option, Choose the Duration between slideshow as per your need.
From Slideshow setting panel Click on Item (next to the section)
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Click anywhere on block/section, select Item Settings and the click on the Arrow button (< and >) to move it's position
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Make sure to click on Publish button to save the changes and make them live on your website.
Feel free to contact us here- https://www.vintcer.com/support​
or via Live chat support if you need any help or support.